Ryco Cabin Air Filter RCA354P Ultra-Performance Disc pad wear sensors are

Disc pad wear sensors are an advanced safety feature on many late model vehicles

The high-end ceramic formulation helps reduce dust and contains no copper

Filters out dirt and dust which build up on a vehicle's interior surfaces

They are electronic devices used to indicate how much material is left before disc pad replacement is required

Ryco Cabin Air Filter RCA354P Ultra-Performance Disc pad wear sensors areRyco Cabin Air Filters deliver an improved cleaner breathing environment for vehicle passengers. Features and Benefits Reduce the amount of harmful contaminants entering the vehicle via the heating ventilation and air conditioning (HVAC) system. Reduces respirable particles that lead to respiratory problems, headaches, nausea and fatigue. Allergy protection for vehicle occupants from allergy causing particles such as pollens, fungus spores, dirt and